相山地区河元背深钻CUSD2孔钻探技术

Drilling Technology of Heyuanbei Deep Drilling Hole CUSD2 in Xiangshan Area

摘要:

相山地区河元背深钻CUSD2孔设计直孔孔深1800 m，于2014年11月28日开钻，至2015年3月26日钻进孔深1535.02 m，达到地质目的层位，顺利终孔，历时119天。该工程选用国内首台XY-8DB型电传动立轴式岩心钻机，成功施工P口径（φ122 mm）绳索取心钻进至1535.02 m。主要介绍了该孔的钻探施工技术。

Abstract:

The vertical depth of Heyuanbei deep drilling hole CUSD2 in xiangshan area was designed for 1800m and it spent 119 days (the drilling started on November 28, 2014 to March 26, 2015)to have the drilling depth of 1535.02m, reaching the geological target horizon. The first domestic XY-8DB electric drive spindle coring rig was chosen for this project construction, with P size (122mm in diameter) core drilling to 1535.02m. The paper introduces the drilling construction technology for this borehole.